10862991 has 20 divisors (see below), whose sum is σ = 16628304. Its totient is φ = 7063200.

The previous prime is 10862963. The next prime is 10863001. The reversal of 10862991 is 19926801.

10862991 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10862991 - 2⁵ = 10862959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10862921) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1686 + ... + 4956.

Almost surely, 2^10862991 is an apocalyptic number.

10862991 is a deficient number, since it is larger than the sum of its proper divisors (5765313).

10862991 is an equidigital number, since it uses as much as digits as its factorization.

10862991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324 (or 3315 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 10862991 is about 3295.9051867431. The cubic root of 10862991 is about 221.4707993989.

The spelling of 10862991 in words is "ten million, eight hundred sixty-two thousand, nine hundred ninety-one".